Island



S. BARR.

GONNEGTION PoR GAS TUBEs.

(No Model.)

Patented June -3 WITNESSES.

FIEIBI- on the tubing 0.

UrTED STATES SAMUEL BARR, OF PROVIDENCE, RHODE ISLAND.

CONNECTION FOR GAS-TUBES.

SPECIFICATION forming part of Letters Patent No. 299,720, dated June 3, 1884.

Application filed May 28, 1883. (No model.)

To @ZZ whom it may concern,.-

Beit known that I, SAMUEL BARR, a citizen of the United States, residing at Providence, in the countyof Providence and State of Rhode Island, have invented certain new and useful improvements in the metal connections used upon flexible gastubing for the Ai'nove a portion of the spiral-wire foundation in order that the tip-connection could be properly attached. Io remedy such defects is in part the object of my invention.

Referring to the drawings, in Figure l, A is a vertical sectional view of a short metallic tube of a diameter sufficient to insure a close iit within the spiral-wire foundation of a flexible gas-tube. It is iiaring at one end, as shown at a, so that w en it is inserted within the flexible tube the aring end will abut or iit closely against an annular shoulder within the casing Band be flush with the end of the tubing. The other end is beveled off to facilitate its easy introduction into the coiled-wire foundation; It is not necessary to remove any of the wire, and the insertion of the tube A serves to make rigid and also give strength to the end of the flexible tube when joined to a gas-burner, and, moreover, when the tubing is bent, causes the bearinoP or'tension to be on the beveled end of the tube A, instead of on the end of the shell B, thereby rendering the part e of the casingless liable to work loose This will Abe apparent from an inspection of Fig. 3 of the drawings,which shows the tubing A extended down below the end of casing B, so that as a' consequence the tubing G is held rigidly between the tube A and casing B, and can bend only at the lower end of tube A. The strain being thus taken away from the tubing and casing at the end of the latter,there can be no lateral pulling of the tubingaway from the sides of the casing, which would loosen the joint between the tubing and casing and cause a leak at that point.

In Fig. 2, B is a vertical sectional representation of the casing. The part o is provided with eitherA a male or female screw, which screw is used for attaching the connection to a gasburner, while the part e is forced over .one end of the flexible tubing, and serves to retain'the short tube A in place; and to enable it to be more effectually united to the tubing, that part of the casing inclosing the same is furnished with a screw-thread upon its interior. Midway between the parts c and e is an annular projection, d, which can be so manipulated as to affix or detach the casing when required.

Fig. 3 shows my invention in its entirety; and Fig. Li shows the tubing applied to a gasburner, in this instance an Argand burner.

Having thus described the several parts of my invention, I will now explain the manner in which I unite my improved connecting-tip to the tubing.

I take a section of liexible tubing, after the same has received its necessary coatings of my impervious compound and envelopes of braid, and evenly trim the end thereof destined to receive the connection. I then bind around that end a smallquantity of thread to keep the braid from unraveling. The next step is to-apply suitable adhesive and gas-tight cement to the end thus bound, and while it is yet warm and plastic I insert into the coiled-wire foundation the beveled end of the tube A, first giving itv a touch of cement. This tube is forced in until its flaring end is flush with the end of the flexible tubing. I then heat the part cof the casing and crowd it over the end of the tubing thus prepared. Then, wiping off the exuded and superfluous cement, the process of uniting the connection and tubing is complete, and all the parts are rmly held together, while the junction is rigid and gas# tight. .It is also my custom to ream out the connection, when afxed, with a heated wire,

IOC

elninl as new, and desire t0 secure by Letters Patent, is-

1. The Combination 0f the internal wire- Supported exible tubing, the easing surronn ding the sinne at the end thereof7 and the tube inserted within the end 01": the tubing inside of the wire support and extended below the lower end 0f the outer easing, Substantially :is described.

2. The combination of the ilexible gas-tubing;7 the casing formed. with an annnlns be- SAMUEL EARR.

Witnesses:

G1110. B. DAY, GEO. K. XVINSLOw. 

